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SECURITY SCORE
Certificate Information
Subject
UNKNOWN=10007784, UNKNOWN={:asn1_OPENTYPE, <<19, 2, 71, 66>>}, UNKNOWN={:asn1_OPENTYPE, <<19, 17, 71, 111, 118, 101, 114, 110, 109, 101, 110, 116, 32, 69, 110, 116, 105, 116, 121>>}, C=GB, ST=London, City of, O=University College London, CN=www.ucl.ac.uk
Issuer
C=NL, O=GEANT Vereniging, CN=GEANT EV RSA CA 4
Valid From
November 05, 2024
Valid Until
November 24, 2025
3 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA384-RSA
SHA-256 Fingerprint
F2:51:E8:71:97:28:5B:31:EF:1B:7E:8F:20:A7:58:37:D9:13:20:B7:5A:DF:E1:07:80:96:51:ED:11:BA:CD:2A
Alternative Names
Security Configuration
TLS Protocols
TLS 1.0
TLS 1.1
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
- • TLS 1.1 is deprecated and should be disabled
- • TLS 1.0 is deprecated and should be disabled
CAA Records (Certificate Authority Authorization)
CAA Records
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports